Grille for a refrigeration or air conditioning unit



FIG. 1 is a perspective view illustrating the front, right side and top of the grille;

FIG. 2 is a front elevational view of the grille;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a left side elevational view; and,

FIG. 6 is a right side elevational view. 

The ornamental design for a grille for a refrigeration or air conditioning unit, as shown and described. 